Terms starting with N

National Cancer Institute (NCI)

The National Cancer Institute is the federal government's principal agency for cancer research and training. (NCI)



National Cancer Institute Community Cancer Centers Program (NCCCP-NCI)

The National Cancer Institute (NCI) Community Cancer Centers Program was an NCI-sponsored three-year pilot program to address the changing landscape of cancer treatment and care delivery. The overriding aim of the program was to expand cancer research to more community sites and improve care delivery across the cancer continuum. Sixteen non-profit community hospital-based cancer centers, including two multi-hospital systems, participated in the pilot.



National Cancer Institute Community Oncology Research Program (NCORP)

The National Cancer Institute Community Oncology Research Program (NCORP) is a national network that brings cancer clinical studies and care delivery studies to people in their own communities. The NCORP network designs and conducts clinical studies in the following focus areas: cancer prevention, screening, supportive care and symptom management, surveillance, health-related quality of life, and cancer care delivery.



National Clinical Trial (NCT) Number

The national clinical trial number (NCT) is the unique identification code that ClinicalTrials.gov provides when they register a clinical study. The format is "NCT"" followed by an 8-digit number (for example



National Comprehensive Cancer Control Program (NCCCP)

The National Comprehensive Cancer Control Program provides funding, guidance, and technical assistance to various programs to help design and implement impactful, strategic, and sustainable plans to prevent and control cancer.



National Institutes of Health

The National Institutes of Health (NIH) is a part of the U.S. Department of Health and Human Services. It is the nation’s medical research agency, providing key funding and guidance to help researchers make important discoveries that improve health and save lives.



Natural History Studies

Natural history studies follow a group of people over time who have, or are at risk of developing, a specific medical condition or disease. A natural history clinical study collects health information in order to understand how the medical condition or disease develops and how to treat it in the overall population. (NCI)



New Drug Application

A new drug application is submitted by the manufacturer of a medicine to the Food and Drug Administration (after the medicine has passed clinical study phase 3) for a license to market the medicine for a specified indication. (NIH)



Non-clinical Study

Non-clinical studies are not performed on human participants or animals but in laboratory conditions often on tissue or cells.



Non-confirmatory Result

In a clinical study (typically phase 3), non-confirmatory results fail to adequately confirm results from previous clinical studies (typically phase 2) that a medicine is safe and effective for use for the intended indication and population.



Non-inferiority Trial

A non-inferiority trial compares two or more treatments with the goal of showing that the different affects of these treatments is not clinically significant, meaning the treatments do not differ substantially in terms of how they affect the condition they are intended to treat.



Non-intervention Arm

The non-intervention arm is the group of participants that does not receive any intervention/treatment during a clinical study. This is in contrast to the intervention arm/branch/group. which receives the treatment being tested.



Non-intervention Branch

The non-intervention branch is the group of participants that does not receive any intervention/treatment during a clinical study. This is in contrast to the intervention arm/branch/group. which receives the treatment being tested.



Non-intervention Group

The non-intervention group are the participants who do not receive any intervention/treatment during a clinical study. This is in contrast to the intervention arm/branch/group. which receives the treatment being tested.



Non-interventional Study

A non-interventional study protocol does not assign participants to a particular therapeutic strategy. Instead, treatments are prescribed in accordance with product labeling in a manner consistent with current practice. Furthermore, prescription of the medicine is clearly separated from the decision to include the participant in the clinical study. No additional diagnostic or monitoring procedures are applied to the participants, and epidemiological methods are used to analyze data.